Tonight, the sky will showcase a Super Blue Moon, an exciting and rare event that combines two unique lunar phenomena: a Supermoon and a Blue Moon. Let’s explore what makes tonight’s moon so special and how you can see it.
What Is a Supermoon?
A supermoon occurs when the moon is full and at its closest point to Earth in its orbit, known as perigee. This makes the Moon appear larger and brighter than usual—about 14% bigger and 30% brighter. While the difference might not be dramatic to the naked eye, you’ll notice the Moon shining more brightly tonight.
What Is a Blue Moon?
There are two definitions for a Blue Moon:
- Seasonal Blue Moon: This refers to the third full moon in a season that has four full moons, which is the case for tonight’s Blue Moon.
- Monthly Blue Moon: This is the second full moon in a single calendar month. While this isn’t the case tonight, it’s a more familiar definition to many.
Tonight’s Blue Moon is a Seasonal Blue Moon, which is much rarer and occurs roughly once every 2-3 years.
Will the Moon be Blue?
The expression “once in a blue moon” is used to describe something that happens very rarely, but its origins are quite interesting. The phrase dates back to the early 16th century, where it originally described absurd or impossible occurrences—similar to saying “when pigs fly.”
Over time, the meaning evolved. In modern usage, it refers to events that occur infrequently but are still possible. In astronomy, a “blue moon” refers to either the second full moon in a calendar month or the third full moon in a season of four. Despite its name, a blue moon doesn’t actually appear blue. The phrase and its astronomical meaning come together to symbolize events that are rare, but not impossible.
What’s Special About Tonight?
Tonight’s moon isn’t just any Blue Moon—it’s also a Supermoon! This combination of a Supermoon and Blue Moon is referred to as a Super Blue Moon, a celestial event that won’t occur again until 2037. The last one occurred in 2023.
How and When to Spot the Super Blue Moon
The Super Blue Moon will reach its peak at 2:26 PM EDT (11:56 PM IST) on August 19, 2024. While the official peak happens during the day in many places, the Moon will still appear full and bright on the surrounding nights.
For the best view, step outside after sunset. In IST, the Moon will rise around 6:51 PM, and in EDT, moonrise occurs at 8:11 PM. Look toward the eastern sky for the Moon’s glowing ascent.
How Long Will the Super Blue Moon Be Visible?
The Super Blue Moon will be visible all night, but it’s best viewed early in the evening when it’s near the horizon. During this time, the “Moon illusion” can make it appear even larger than it is.
Future Supermoons in 2024
If tonight’s event leaves you wanting more, mark your calendars for three additional Supermoons in 2024:
Don’t miss this rare chance to see a Super Blue Moon tonight, and enjoy the beauty of our night sky! This is truly a “Once in a Blue Moon” chance!
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